JPS6314935B2 - - Google Patents
Info
- Publication number
- JPS6314935B2 JPS6314935B2 JP58071246A JP7124683A JPS6314935B2 JP S6314935 B2 JPS6314935 B2 JP S6314935B2 JP 58071246 A JP58071246 A JP 58071246A JP 7124683 A JP7124683 A JP 7124683A JP S6314935 B2 JPS6314935 B2 JP S6314935B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heat treatment
- heated
- steady
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 claims description 57
- 238000000034 method Methods 0.000 claims description 23
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
Description
【発明の詳細な説明】
本発明は食品等の被加熱処理物を高温の蒸気雰
囲気内に一定時間保持して加熱処理するバツチ式
蒸気加熱処理方法に係り、特に被加熱処理物の表
面温度が定常処理温度に達するまでの間、雰囲気
温度を定常処理温度よりも高温度に保つて適宜変
化させることによつて、加熱時間の短縮及び省エ
ネルギーを実現し得るバツチ式蒸気加熱処理方法
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a batch-type steam heat treatment method in which an object to be heated, such as food, is kept in a high-temperature steam atmosphere for a certain period of time for heat treatment. The present invention relates to a batch steam heat treatment method that can shorten heating time and save energy by keeping the ambient temperature higher than the steady process temperature and changing it as appropriate until the steady process temperature is reached.
一般に、バツチ式蒸気加熱処理方法にあつて
は、第１図に示す如く、加熱処理槽１内に蒸気吹
出パイプ２を配設して加熱処理槽１内に高温の蒸
気を噴出させ、雰囲気１２の温度を上昇させて被
加熱処理物１１の温度を所定の定常処理温度で一
定時間保持して加熱処理を行なつているが、上記
の蒸気加熱処理方法は凝縮を伴なう熱伝達による
加熱処理方法であるため、膜状凝縮あるいは滴状
凝縮によつて蒸気から被加熱処理物への熱伝達が
行なわれ、被加熱処理物１１の表面は液状又は滴
状の温度境界層（以下境膜という。）１３によつ
て覆われることになる。ところで、従来のバツチ
式蒸気加熱処理方法にあつては、第２図に示す如
く、被加熱処理物１１の表面温度が定常処理温度
t0に達するまでの加熱処理工程の初期(A)、中期
(B)、終期(C)に於いて加熱処理槽内の雰囲気１２の
温度を被加熱処理物１１の定常処理温度t0と同温
度に設定しているため、蒸気から被加熱処理物１
１への熱伝達を防げる境膜１３の存在によつて、
被加熱処理物１１の温度が定常処理温度t0に達す
るまでの加熱時間が長くなり、作業能率が低下す
ると共に加熱エネルギーの消費量も多くなる等の
問題があつた。 Generally, in the batch type steam heat treatment method, as shown in FIG. Heat treatment is performed by increasing the temperature of the object 11 to be heated and maintaining it at a predetermined steady temperature for a certain period of time. Since this is a treatment method, heat is transferred from the steam to the object to be heated by film condensation or droplet condensation, and the surface of the object to be heated 11 is formed with a liquid or droplet-like temperature boundary layer (hereinafter referred to as a boundary layer). ) will be covered by 13. By the way, in the conventional batch-type steam heat treatment method, as shown in FIG.
Early (A) and middle stages of the heat treatment process until reaching t 0
In (B) and the final stage (C), the temperature of the atmosphere 12 in the heat treatment tank is set to the same temperature as the steady-state treatment temperature t 0 of the object to be heated 11, so that the steam changes to the object to be heated 1.
Due to the existence of the membrane 13 that prevents heat transfer to 1,
There were problems such as a longer heating time until the temperature of the object to be heated 11 reached the steady processing temperature t 0 , lowering work efficiency and increasing heating energy consumption.
本発明は上述の諸問題を解消すべく案出された
もので、被加熱処理物の品質を低下させることな
く定常処理温度に達するまでの加熱処理時間を短
縮し、作業能率の向上及び省エネルギーが可能な
バツチ式蒸気加熱処理方法を提供することを目的
とする。 The present invention was devised to solve the above-mentioned problems, and it shortens the heat treatment time until the steady temperature is reached without degrading the quality of the object to be heated, improving work efficiency and saving energy. The object of the present invention is to provide a batch-type steam heat treatment method that is possible.
以上の目的達成のため種々検討の結果、加熱処
理槽内の雰囲気温度が被加熱処理物の温度上昇に
直接作用しないこと、即ち蒸気からの熱が被加熱
処理物の表面に形成される境膜を介して間接的に
被加熱処理物に伝達される点に着目し、被加熱処
理物の表面温度が定常処理温度に上昇するまでの
間、雰囲気温度を定常処理温度よりも高温度に保
つことによつて本発明の完成に達したものであ
り、本発明の構成は、凝縮により表面に液状又は
滴状の境膜が覆われた被加熱処理物を収容してい
る加熱処理槽内に蒸気を吹き込み、前記被加熱処
理物の温度を一定時間定常処理温度に保持するバ
ツチ式蒸気加熱処理方法に於いて、前記加熱処理
槽内の雰囲気温度を、加熱初期には前記境膜の下
の被加熱処理物の表面温度が定常処理温度を越え
ることなき程度に被加熱処理物の定常処理温度よ
りも十分高温に設定し、被加熱処理物の温度が上
昇するに従つて比例的・段階的に低下せしめ、前
記被加熱処理物の表面温度が定常処理温度に達し
た時点で前記定常処理温度に設定することを特徴
とするバツチ式蒸気加熱処理方法を要旨とするも
のである。 As a result of various studies to achieve the above objectives, we found that the atmospheric temperature inside the heat treatment tank does not directly affect the temperature rise of the object to be heated, that is, a film is formed on the surface of the object to be heated by the heat from the steam. Focusing on the fact that heat is indirectly transmitted to the object to be heated through the heating process, the ambient temperature is maintained at a higher temperature than the steady processing temperature until the surface temperature of the object to be heated reaches the steady processing temperature. The present invention has been completed through the following steps, and the structure of the present invention is to introduce steam into a heat treatment tank containing a material to be heated whose surface is covered with a liquid or droplet-like film due to condensation. In the batch steam heat treatment method, in which the temperature of the object to be heated is maintained at a steady treatment temperature for a certain period of time, the atmospheric temperature in the heat treatment tank is adjusted to the temperature of the coating under the film in the initial stage of heating. The surface temperature of the heated object is set to a temperature sufficiently higher than the steady processing temperature of the object to be heated, so that the surface temperature of the object to be heated does not exceed the steady processing temperature, and as the temperature of the object to be heated increases, the temperature is This method is characterized in that the surface temperature of the object to be heated is lowered, and the temperature is set at the steady-state processing temperature when the surface temperature of the object to be heated reaches the steady-state processing temperature.
以下図面に基づき本発明の一実施例を説明す
る。第３図は本発明の一実施例に係るバツチ式蒸
気加熱処理方法を実施するための加熱処理装置を
示すものであり、図に於いて加熱処理装置は、加
熱処理槽１内に蒸気吹出パイプ２及び温度検出器
３を配設し、蒸気吹出パイプ２と蒸気発生源（図
示せず）とを接続する蒸気配管４の途中に電動弁
５、減圧弁６及び圧力計７を取り付けると共に加
熱処理槽１内の雰囲気温度変化を自動制御する自
動温度調節器８を具備している。上記自動温度調
節器８は、加熱処理槽１内の雰囲気温度変化を予
めプログラムしたプログラム設定部９及び温度検
出器３からの検出信号とプログラム設定部９から
の設定信号とを比較して電動弁５の開閉を制御す
る制御信号を出力する電動弁制御部１０より構成
されている。 An embodiment of the present invention will be described below based on the drawings. FIG. 3 shows a heat treatment apparatus for carrying out a batch type steam heat treatment method according to an embodiment of the present invention. 2 and a temperature detector 3, and an electric valve 5, a pressure reducing valve 6, and a pressure gauge 7 are installed in the middle of the steam piping 4 that connects the steam blowing pipe 2 and a steam generation source (not shown), and heat treatment is performed. It is equipped with an automatic temperature controller 8 that automatically controls changes in the atmospheric temperature within the tank 1. The automatic temperature controller 8 compares the detection signals from the program setting section 9 and temperature detector 3, in which atmospheric temperature changes in the heat treatment tank 1 are programmed in advance, with the setting signals from the program setting section 9, and operates the electric valve. The motor-operated valve control section 10 outputs a control signal for controlling the opening and closing of the valve 5.
しかして、本実施例のバツチ式蒸気加熱処理方
法にあつては、第４図に示す如く、被加熱処理物
の表面温度が定常温度に達するまでの加熱処理工
程の加熱初期(A)に於いて、第３図に示す加熱処理
槽１内の蒸気吹出パイプ２から、前記境膜の下の
被加熱処理物の表面温度が定常処理温度を越える
となき程度に被加熱処理物１１の定常処理温度t0
よりも十分高温の蒸気を吹き込んで、雰囲気１２
の温度を定常処理温度t0よりも十分高温のt1（t0＜
t1）に設定する。この場合、被加熱処理物１１の
表面温度は急上昇するものの、その表面を覆つて
いる境膜１３のために一気に定常処理温度t0を越
えることはなく、従つて被加熱処理物１１の品質
に何等悪影響をおよぼすものではない。次いで、
加熱中期(B)、即ち被加熱処理物１１の表面温度
が、定常処理温度t0に向つて上昇するに従つて雰
囲気１２の温度を、定常処理温度t0より高温で且
つ初期加熱処理温度t1よりも低温のt2（t0＜t2＜t1）
に保ちつつ漸次低下させ、加熱終期(C)、即ち被加
熱処理物１１の表面温度が定常処理温度t0となつ
た時点に於いて、雰囲気１２の温度もt0として一
定時間保持するものである。尚、本実施例に於い
ては、自動温度調節器８を用い、加熱処理槽１内
の雰囲気温度変化を予めプログラム設定部９にプ
ログラムし、温度検出器３が加熱処理槽１内の温
度に応じて出力する検出信号と上記プログラム設
定部９からの設定信号とを電動弁制御部１０に入
力して比較し、その出力する制御信号で電動弁５
の開閉動作を加熱処理槽１内の温度変化に対応さ
せて開閉して加熱処理槽１内へ吹き込む蒸気量を
制御することによつて被加熱処理物１１の性質に
応じて上記雰囲気温度のt1からt0へ至る温度変化
を比例的・段階的あるいはその他の変化様式で自
動的に調節しているので、誤操作等の虞れもなく
最適条件の温度変化が容易に行ない得る。 Therefore, in the batch steam heat treatment method of this embodiment, as shown in FIG. Then, from the steam blowing pipe 2 in the heat treatment tank 1 shown in FIG. temperature t 0
Atmosphere 12 is created by blowing steam at a temperature sufficiently higher than that of
The temperature of t 1 is sufficiently higher than the steady processing temperature t 0 (t 0 <
t1 ). In this case, although the surface temperature of the object to be heated 11 rises rapidly, it does not suddenly exceed the steady processing temperature t 0 due to the film 13 covering the surface, and therefore the quality of the object to be heated 11 is affected. It does not have any negative impact. Then,
During the middle heating period (B), as the surface temperature of the object to be heated 11 rises toward the steady-state processing temperature t0 , the temperature of the atmosphere 12 is increased to a temperature higher than the steady-state processing temperature t0 and at the initial heat-treating temperature t. t 2 lower than 1 (t 0 < t 2 < t 1 )
At the final stage of heating (C), that is, when the surface temperature of the object to be heated 11 reaches the steady processing temperature t0 , the temperature of the atmosphere 12 is also maintained at t0 for a certain period of time. be. In this embodiment, the automatic temperature controller 8 is used to program the atmospheric temperature change inside the heat treatment tank 1 into the program setting unit 9 in advance, and the temperature detector 3 adjusts the temperature inside the heat treatment tank 1. The detection signal output accordingly and the setting signal from the program setting section 9 are input to the electric valve control section 10 and compared, and the output control signal is used to control the electric valve 5.
By controlling the amount of steam blown into the heat treatment tank 1 by opening and closing in response to temperature changes in the heat treatment tank 1, the above-mentioned atmospheric temperature t can be adjusted according to the properties of the object to be heated 11. Since the temperature change from 1 to t 0 is automatically adjusted in a proportional, stepwise, or other manner of change, the temperature can be easily changed under optimal conditions without the risk of erroneous operation.
第５図は、被加熱処理物の温度が定常処理温度
に達するまでの従来の加熱処理方法に於ける被加
熱処理物の温度(a)及び雰囲気温度(b)並びに本発明
の一実施例に係る加熱処理方法に於ける被加熱処
理物の温度(c)及び雰囲気温度(d)の時間的変化を表
わしたグラフを示し、定常処理温度t0及び従来の
雰囲気温度を80℃、本発明の加熱初期に於ける雰
囲気温度を90℃に設定したものであり、明らか
に、本発明に於ける加熱処理時間の短縮が認めら
れる。 Figure 5 shows the temperature of the object to be heated (a) and the ambient temperature (b) in the conventional heat treatment method until the temperature of the object to be heated reaches the steady processing temperature, as well as the temperature of the object in an embodiment of the present invention. A graph showing temporal changes in the temperature (c) of the object to be heated and the ambient temperature (d) in such a heat treatment method is shown, with the steady processing temperature t 0 and the conventional ambient temperature being 80°C, and the present invention The atmospheric temperature at the initial stage of heating was set at 90°C, and it is clearly recognized that the heat treatment time in the present invention is shortened.
尚、本発明は加熱処理槽が圧力容器である必要
はなく、開放型であつても良く、この場合、蒸気
加熱手法によれば加熱処理槽内の温度は100℃が
最高温度となるものであると共に、当然乍ら加熱
処理槽は耐圧構造を不要とし且つ温度管理に必須
とされる複雑な圧力管理も不要となり、装置構造
が簡潔にして取扱操作も極めて容易なものとな
る。 In addition, in the present invention, the heat treatment tank does not need to be a pressure vessel, and may be an open type, and in this case, according to the steam heating method, the maximum temperature in the heat treatment tank is 100 ° C. At the same time, the heat treatment tank naturally does not require a pressure-resistant structure and does not require complicated pressure management required for temperature control, and the device structure is simple and handling is extremely easy.
以上述べた如く、本発明のバツチ式蒸気加熱処
理方法は、蒸気からの熱が境膜を介して間接的に
被加熱処理物の表面に伝達される点に着目し、雰
囲気温度を、加熱初期には境膜の下の被加熱処理
物の表面温度が定常処理温度を越えることなき程
度に定常処理温度よりも十分高温とし、被加熱処
理物の温度上昇に応じて比例的、段階的に低下さ
せ、被加熱処理物の表面温度が定常処理温度に達
した時点で定常処理温度に設定することを特徴と
しているので、被加熱処理物の温度が加熱初期に
於いて急上昇し、且つ境膜の存在によつて被加熱
処理物の内部は述べるまでもなく、最も強く高温
に晒される被加熱処理物の外表面部も定常処理温
度を越えないので、被加熱処理物が露呈された状
態或いは容器等に収納された状態であつても被加
熱処理物の全体の品質を低下させずに加熱処理時
間を短縮できるため、加熱処理作業能率の向上及
び省エネルギーを可能にするものである。 As described above, the batch-type steam heat treatment method of the present invention focuses on the fact that the heat from the steam is indirectly transmitted to the surface of the object to be heated through the boundary film, and the atmospheric temperature is set at the initial stage of heating. The surface temperature of the object to be heated under the film is set to be sufficiently higher than the steady processing temperature to the extent that it does not exceed the steady processing temperature, and the temperature is decreased proportionally and stepwise as the temperature of the object to be heated increases. This method is characterized in that the temperature of the object to be heated is set to the steady-state treatment temperature when the surface temperature of the object to be heated reaches the steady-state treatment temperature. Needless to say, not only the inside of the object to be heated, but also the outer surface of the object to be heated, which is most exposed to high temperatures, does not exceed the steady processing temperature. The heat treatment time can be shortened without deteriorating the overall quality of the object to be heated, even when the object is stored in a storage container, etc., thereby making it possible to improve heat treatment efficiency and save energy.
第１図は加熱処理槽内で被加熱処理物が加熱処
理されている状態を示す説明図、第２図は従来の
加熱処理工程に於ける温度変化の状態を示す説明
図、第３図は本発明のバツチ式蒸気加熱処理方法
を実施するための加熱処理装置の構成図、第４図
は本発明の加熱工程に於ける温度変化の状態を示
す説明図、第５図は従来及び本発明の時間的温度
変化を示すグラフである。
１……加熱処理槽、２……蒸気吹出パイプ、８
……自動温度調節器、１２……雰囲気。
Fig. 1 is an explanatory diagram showing the state in which the object to be heated is being heat-treated in the heat treatment tank, Fig. 2 is an explanatory diagram showing the state of temperature change in the conventional heat treatment process, and Fig. 3 is an explanatory diagram showing the state of temperature change in the conventional heat treatment process. A configuration diagram of a heat treatment apparatus for carrying out the batch type steam heat treatment method of the present invention, FIG. 4 is an explanatory diagram showing the state of temperature change in the heating process of the present invention, and FIG. 5 is a diagram of the conventional and present invention. It is a graph showing a temporal temperature change. 1... Heat treatment tank, 2... Steam blowing pipe, 8
...Automatic temperature controller, 12...Atmosphere.
Claims (1)
れた被加熱処理物を収容している加熱処理槽内に
蒸気を吹き込み、前記被加熱処理物の温度を一定
時間定常処理温度に保持するバツチ式蒸気加熱処
理方法に於いて、前記加熱処理槽内の雰囲気温度
を、加熱初期には前記境膜の下の被加熱処理物の
表面温度が定常処理温度を越えることなき程度に
被加熱処理物の定常処理温度よりも十分高温に設
定し、被加熱処理物の温度が上昇するに従つて比
例的・段階的に低下せしめ、前記被加熱処理物の
表面温度が定常処理温度に達した時点で前記定常
処理温度に設定することを特徴とするバツチ式蒸
気加熱処理方法。1. Steam is blown into a heat treatment tank containing a heat treatment object whose surface is covered with a liquid or droplet film due to condensation, and the temperature of the heat treatment object is maintained at a steady treatment temperature for a certain period of time. In the batch steam heat treatment method, the atmospheric temperature in the heat treatment tank is set to such a level that the surface temperature of the object to be heated under the membrane does not exceed the steady treatment temperature at the initial stage of heating. Set at a temperature sufficiently higher than the steady processing temperature of the object, and lower it proportionally and stepwise as the temperature of the object to be heated rises, until the surface temperature of the object to be heated reaches the steady processing temperature. A batch steam heat treatment method characterized in that the steady treatment temperature is set at .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58071246A JPS59210851A (en) | 1983-04-22 | 1983-04-22 | Process for batchwise heat-treatment with steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58071246A JPS59210851A (en) | 1983-04-22 | 1983-04-22 | Process for batchwise heat-treatment with steam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59210851A JPS59210851A (en) | 1984-11-29 |
| JPS6314935B2 true JPS6314935B2 (en) | 1988-04-02 |
Family
ID=13455143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58071246A Granted JPS59210851A (en) | 1983-04-22 | 1983-04-22 | Process for batchwise heat-treatment with steam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59210851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115433756A (en) * | 2022-08-30 | 2022-12-06 | 山东新华制药股份有限公司 | Preparation method of prednisolone |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643716A (en) * | 1979-09-18 | 1981-04-22 | Tdk Electronics Co Ltd | Solid*layerrbuilt electronic circuit parts |
-
1983
- 1983-04-22 JP JP58071246A patent/JPS59210851A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643716A (en) * | 1979-09-18 | 1981-04-22 | Tdk Electronics Co Ltd | Solid*layerrbuilt electronic circuit parts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115433756A (en) * | 2022-08-30 | 2022-12-06 | 山东新华制药股份有限公司 | Preparation method of prednisolone |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59210851A (en) | 1984-11-29 |
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